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对６例甲状旁腺囊肿（ＰＴＣ）的临床表现与病理学改变作了研究。６例均为单一囊肿，位于甲状旁腺区。５例为无功能囊肿，１例合并甲状旁腺机能亢进。组织学检查，３例为发育性囊肿，囊液无色清亮，囊壁薄，常见平滑肌细胞及巢状分布的甲状旁腺细胞；２例为融合性囊肿，囊液呈浆液状，囊壁内衬数层细胞；１例囊液呈血性，证实为甲状旁腺腺瘤出血梗死造成的囊性改变。讨论了ＰＴＣ的病因、组织学改变及分类。
6 cases of parathyroid cyst (PTC) clinical manifestations and pathological changes were studied. Six cases were single cysts, located in the parathyroid area. 5 cases of non-functional cysts, 1 case of hyperparathyroidism. Histological examination, 3 cases of developmental cyst, cyst fluid colorless and clear, thin wall, common smooth muscle cells and neoplasms of parathyroid cells; 2 cases of confluent cysts, cystic fluid was serous, wall lined Several layers of cells; 1 cyst fluid was bloody confirmed cystic changes caused by parathyroid adenoma hemorrhagic infarction. The etiology, histological changes and classification of PTC were discussed.